chromium/ui/webui/resources/cr_components/certificate_manager/certificate_entry.html

    <style include="certificate-shared iron-flex">
      .expand-box {
        align-items: center;
        border-top: var(--cr-separator-line);
        display: flex;
        min-height: 48px;
        padding: 0 20px;
      }
    </style>
    <div class="expand-box">
      <div class="flex">[[model.id]]</div>
      <cr-policy-indicator indicator-type="[[getPolicyIndicatorType_(model)]]">
      </cr-policy-indicator>
      <cr-expand-button no-hover expanded="{{expanded_}}"
          aria-label="[[i18n('certificateManagerExpandA11yLabel')]]">
      </cr-expand-button>
    </div>
    <template is="dom-if" if="[[expanded_]]">
      <div class="list-frame">
        <template is="dom-repeat" items="[[model.subnodes]]">
          <certificate-subentry model="[[item]]"
              certificate-type="[[certificateType]]"
              is-last$="[[isLast_(index, model)]]">
          </certificate-subentry>
        </template>
      </div>
    </template>